Problems

	Submissions				Users
Name	Total	Acc.	Ratio	Fastest	Total	Acc.	Ratio	Difficulty
0-1 Sequences	8011	1133	14%	0.00	1524	754	49%	7.0
10 Kinds of People	16715	3432	21%	0.01	2853	2042	72%	4.3
2048	7712	3604	47%	0.00	3464	2962	86%	2.2
3D Printed Statues	9054	4151	46%	0.00	3844	3442	90%	1.9
3D Printer	704	129	18%	0.00	275	99	36%	8.6
3-Sided Dice	2223	192	9%	0.00	362	133	37%	8.6
4 thought	7895	2658	34%	0.00	2649	2212	84%	2.6
A1 Paper	4948	1462	30%	0.00	1445	1151	80%	3.6
Aaah!	26751	12428	46%	0.00	11161	10395	93%	1.6
Abandoned Animal	1779	382	21%	0.03	442	319	72%	5.2
ABC	12279	5560	45%	0.00	5286	4803	91%	1.9
Ab Initio	889	177	20%	0.09	131	85	65%	7.4
Above Average	7719	3184	41%	0.00	3157	2826	90%	2.2
A+B Problem	7539	731	10%	0.03	1053	348	33%	8.4
A Brief Gerrymander	201	45	22%	0.15	49	30	61%	8.4
Abstract Art	272	81	30%	0.00	82	61	74%	6.6
Abstract Painting	191	84	44%	0.00	94	76	81%	3.7
Absurdistan Roads II	562	203	36%	0.00	199	137	69%	6.8
Absurdistan Roads III	1384	390	28%	0.02	381	293	77%	5.4
Access Points	382	137	36%	0.01	127	100	79%	4.7
A Classy Problem	8671	2200	25%	0.01	1937	1489	77%	4.6
ACM Contest Scoring	6347	3968	63%	0.00	3506	3311	94%	1.6
Add 'Em Up!	503	139	28%	0.01	145	109	75%	4.9
Adding Words	9740	2283	23%	0.00	2234	1719	77%	3.6
A Different List Game	6659	470	7%	0.00	833	169	20%	9.1
A Different Problem	28544	10603	37%	0.00	9782	8494	87%	2.3
Adjoin the Networks	1963	513	26%	0.00	447	349	78%	5.6
Administrative Difficulties	1061	242	23%	0.03	258	176	68%	6.2
Advanced Causal Measurements	82	30	37%	0.10	27	23	85%	6.1
Adventure Begins	248	80	32%	0.06	87	66	76%	4.0
Adventures in Moving -- Part IV	969	274	28%	0.00	238	203	85%	4.4
A Favourable Ending	1546	396	26%	0.00	373	284	76%	4.6
A Feast For Cats	1987	709	36%	0.00	475	401	84%	4.2
A Flea on a Chessboard	416	88	21%	0.01	97	72	74%	5.0
Air Conditioned Minions	4801	1322	28%	0.00	1396	1050	75%	3.9
Airline Hub	1754	326	19%	0.01	355	201	57%	6.7
Airport Coffee	858	184	21%	0.09	169	121	72%	7.1
Airport Construction	3306	421	13%	0.02	349	183	52%	7.5
Airport Logistics	63	13	21%	0.00	20	13	65%	8.0
Airports	406	111	27%	0.11	117	82	70%	6.9
Akcija	6879	3046	44%	0.00	2776	2461	89%	2.0
Aladin	754	76	10%	0.10	122	29	24%	8.3
Alchemy	112	16	14%	0.02	31	16	52%	8.8
Alea iacta est	32	13	41%	0.34	17	13	76%	6.9
Alehouse	170	75	44%	0.03	58	44	76%	4.7
Alice in the Digital World	3120	848	27%	0.01	819	644	79%	4.1
Alien Codebreaking	236	13	6%	3.23	37	10	27%	8.9
Alien Numbers	2155	1120	52%	0.00	1092	991	91%	2.0
A List Game	7771	2296	30%	0.00	2167	1823	84%	2.9
All about that base	2737	1074	39%	0.00	1055	883	84%	3.0
All Different Directions	1174	505	43%	0.00	475	416	88%	2.6
Allergy Test	448	128	29%	0.00	145	75	52%	7.7
All Friends	837	163	19%	0.00	150	78	52%	8.9
All is Well	66	16	24%	0.03	16	14	88%	5.5
All Just A Dream	1870	415	22%	0.05	288	204	71%	6.4
All Pairs Shortest Path	8323	1483	18%	0.00	1021	718	70%	6.0
Almost Perfect	7070	1652	23%	0.00	1763	1371	78%	3.7
Almost Union-Find	6125	1086	18%	0.02	985	569	58%	6.6
Alphabet	1417	692	49%	0.00	711	596	84%	3.1
Alphabet Animals	1707	543	32%	0.00	549	443	81%	3.3
Alphabet Spam	7540	4718	63%	0.00	3851	3700	96%	1.4
Alternative Bracket Notation	205	86	42%	0.00	91	76	84%	5.6
Altruistic Amphibians	377	98	26%	0.24	95	69	73%	5.0
Amalgamated Artichokes	3747	1684	45%	0.01	1524	1326	87%	2.8
Amanda Lounges	1399	394	28%	0.03	367	288	78%	5.7
A Mazing!	2547	581	23%	0.09	273	206	75%	5.1
Amazing Adventures	330	85	26%	0.02	98	67	68%	6.1
Amazing Race	281	75	27%	0.39	85	60	71%	7.2
Ambiguous Result	264	57	22%	0.02	87	54	62%	8.2
Amsterdam Distance	1340	588	44%	0.00	636	522	82%	3.0
A Multiplication Game	717	239	33%	0.00	272	203	75%	4.7
Anagram Counting	3365	1293	38%	0.00	1256	1047	83%	3.1
Andrew the Ant	275	74	27%	0.06	85	64	75%	5.1
A New Adventure	849	136	16%	0.00	152	102	67%	6.0
A New Alphabet	10447	4668	45%	0.00	4327	3997	92%	1.8
An I for an Eye	624	147	24%	0.00	174	118	68%	5.2
Animal Classification	1554	353	23%	0.03	304	201	66%	6.8
An Industrial Spy	1482	782	53%	0.02	615	528	86%	3.2
Another Brick in the Wall	3068	1512	49%	0.00	1460	1334	91%	1.9
Another Candies	7532	2053	27%	0.00	2130	1757	82%	2.7
Another Dice Game	97	67	69%	0.00	64	56	88%	4.0
Another Query on Array Problem	1490	213	14%	0.05	325	148	46%	7.5
Antenna Placement	133	62	47%	0.00	42	34	81%	5.5
Anthony and Cora	851	217	25%	0.00	258	181	70%	5.3
Anthony and Diablo	2881	991	34%	0.00	994	856	86%	2.5
Antiarithmetic?	1345	248	18%	0.01	310	178	57%	7.1
Ants	3437	1521	44%	0.00	1222	1066	87%	2.7
Apaxiaaaaaaaaaaaans!	12239	7471	61%	0.00	6617	6335	96%	1.4
Apostrophe Catastrophe	99	24	24%	0.00	25	17	68%	6.3
Appalling Architecture	595	170	29%	0.00	146	123	84%	3.6
Apparatus	682	169	25%	0.01	136	102	75%	5.7
Apple Market	468	96	21%	0.07	116	60	52%	8.3
Apples, Cherries, and Mangos	406	123	30%	0.02	126	91	72%	6.4
A Prize No One Can Win	2076	835	40%	0.00	758	664	88%	2.5
Aquarium Tank	474	133	28%	0.00	128	101	79%	5.1
Aqueduct Construction	196	71	36%	0.01	55	47	85%	6.8
A Question of Ingestion	1273	315	25%	0.00	302	230	76%	5.8
Arable Area	294	65	22%	0.04	67	42	63%	8.1
Arachnophobia	341	102	30%	0.14	92	77	84%	5.1
A Random Problem	313	80	26%	0.00	77	53	69%	6.3